Evaluation of the membranes based on the mixture biopolymers for the removal of ammonia and ammonium ions from waste waters

Abstract

High concentrations of ammonia are commonly present in industrial wastewaters and fertilizer

wastewaters which can promote the eutrophication phenomena. Although the removal of ammonium

from contaminated water via polyelectrolyte was investigated in this work using a sodium poly acrylate

supported on the chitosan membrane on a batch adsorption experiments. The concentration of

ammonium in the receiving solution is essentially zero. Total ammonia removal could be accelerated

by the driving force using the electrodes in each compartment for this liquid-liquid membrane contactor

operation is the difference in ammonium partial pressure between the feed and the receiving solution.

The results indicate that as preparedmixture adsorbent has faster adsorption kinetics and higher

adsorption capacity than the chitosan membrane and other mixture polymers such as sodium alginate

and polyvinyl alcohol/ chitosan at different ratio. All information obtained give an indication that the

mixture polyelectrolyte/chitosan can be used as a novel type, fast-responsive and high-capacity

sorbent material for NH

4

+-N removal.